Optimal. Leaf size=53 \[ \frac{5}{a c (1-a x)}-\frac{1}{a c (1-a x)^2}+\frac{4 \log (1-a x)}{a c}+\frac{x}{c} \]
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Rubi [A] time = 0.133577, antiderivative size = 53, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 3, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.136, Rules used = {6157, 6150, 77} \[ \frac{5}{a c (1-a x)}-\frac{1}{a c (1-a x)^2}+\frac{4 \log (1-a x)}{a c}+\frac{x}{c} \]
Antiderivative was successfully verified.
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Rule 6157
Rule 6150
Rule 77
Rubi steps
\begin{align*} \int \frac{e^{4 \tanh ^{-1}(a x)}}{c-\frac{c}{a^2 x^2}} \, dx &=-\frac{a^2 \int \frac{e^{4 \tanh ^{-1}(a x)} x^2}{1-a^2 x^2} \, dx}{c}\\ &=-\frac{a^2 \int \frac{x^2 (1+a x)}{(1-a x)^3} \, dx}{c}\\ &=-\frac{a^2 \int \left (-\frac{1}{a^2}-\frac{2}{a^2 (-1+a x)^3}-\frac{5}{a^2 (-1+a x)^2}-\frac{4}{a^2 (-1+a x)}\right ) \, dx}{c}\\ &=\frac{x}{c}-\frac{1}{a c (1-a x)^2}+\frac{5}{a c (1-a x)}+\frac{4 \log (1-a x)}{a c}\\ \end{align*}
Mathematica [A] time = 0.0303221, size = 53, normalized size = 1. \[ \frac{5}{a c (1-a x)}-\frac{1}{a c (1-a x)^2}+\frac{4 \log (1-a x)}{a c}+\frac{x}{c} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.039, size = 51, normalized size = 1. \begin{align*}{\frac{x}{c}}-{\frac{1}{ac \left ( ax-1 \right ) ^{2}}}-5\,{\frac{1}{ac \left ( ax-1 \right ) }}+4\,{\frac{\ln \left ( ax-1 \right ) }{ac}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0.958677, size = 66, normalized size = 1.25 \begin{align*} -\frac{5 \, a x - 4}{a^{3} c x^{2} - 2 \, a^{2} c x + a c} + \frac{x}{c} + \frac{4 \, \log \left (a x - 1\right )}{a c} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.79228, size = 140, normalized size = 2.64 \begin{align*} \frac{a^{3} x^{3} - 2 \, a^{2} x^{2} - 4 \, a x + 4 \,{\left (a^{2} x^{2} - 2 \, a x + 1\right )} \log \left (a x - 1\right ) + 4}{a^{3} c x^{2} - 2 \, a^{2} c x + a c} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 1.22986, size = 41, normalized size = 0.77 \begin{align*} - \frac{5 a x - 4}{a^{3} c x^{2} - 2 a^{2} c x + a c} + \frac{x}{c} + \frac{4 \log{\left (a x - 1 \right )}}{a c} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.18507, size = 57, normalized size = 1.08 \begin{align*} \frac{x}{c} + \frac{4 \, \log \left ({\left | a x - 1 \right |}\right )}{a c} - \frac{5 \, a x - 4}{{\left (a x - 1\right )}^{2} a c} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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